[APP control] Smart thermostat, you can control it through your mobile phone before going home. [Manual/Automatic mode] You can freely choose manual or automatic mode. [Accurate temperature] Internal sensor floor sensor, which can sense the ambient temperature and floor temperature. Automatically obtain temperature with an accuracy of 1℃. [Weekly programmable] The thermostat supports different temperature settings for 6 time modes every day. [Window opening function] When the window is opened, causing the room temperature to drop by more than 6℃ within 4 minutes, the screen displays "OP" and closes the valve. If the room temperature rises by 3℃, this function can be released or it can be released automatically after more than 48 minutes, or it can be released manually. [Anti-scale function] If the radiator is not fully opened once within two weeks or long-term use will cause the valve to be blocked due to excessive scale, the radiator will not be able to be used. In order to ensure that the radiator can be used normally, the controller will automatically fully open the valve once every two weeks for 30 seconds, during which the screen will display "Ad", and resume operation after the operation is completed. [Child lock] The keyboard lock function is designed to prevent children from operating it by mistake. [Use] Suitable for radiator heating. Perfect for home, office, shopping mall, hotel, etc. Voice control: Alexa, Google Home Battery:2xAA Alkaline Battery (Not included batteries) Temperature range: 5℃-60℃ Temperature display: 0℃-60℃ Constant temperature tolerance: ±1℃ Temperature sensor: NTC Wireless protocol: Zigbee 3.0 Connection method: M30x1.5mm Maximum stroke: 6mm Working temperature: -10℃-40℃ Working environment: Indoor Antifreeze: Yes Programmable: Yes Colour:As Shown Material:ABS Package Contents: 1